listing5-2.py

#!/usr/bin/env python
# coding: utf-8

# Escape - A Python Adventure
# Personal work following the book “Mission Python” (Sean McManus)

planets = {"Mercury": "The smallest planet, nearest the Sun",
           "Venus": "Venus takes 243 days to rotate",
           "Earth": "The only planet known to have native life",
           "Mars": "The Red Planet is the second smallest planet",
           "Jupiter": "The largest planet, Jupiter is a gas giant",
           "Saturn": "The second largest planet is a gas giant",
           "Uranus": "An ice giant with a ring system",
           "Neptune": "An ice giant and farthest from the Sun",
           "Pluto": "Not considered a planet since 2006."
           }

while True:
   query = input("Which planet would you like information on? ")
   if query in planets.keys():
       print(planets[query])
   else:
       print("No data available! Sorry!")